#semi-synthetic

Jim writes:

Hi,

I hope you are well. I have several questions regarding my 2011 Forester (5 speed):

a) I drive 8 to 10K annually and change the 5w-20 every 6 months. Is this sufficient?

b) Subaru keeps sending me extended warranty offers. This tells me that I likely don’t need it. What do you think? My favorite moment when purchasing the Forester: The F & I rep mentioning “If people want to drive around without the extended warranty, it is not my problem.”

Patrick writes:

Okay, I have a question. Strictly follow the manufacturer’s suggested maintenance schedule, or only perform demand maintenance?